ABSTRACT: Air conditioning in spinning of fiber has many benefit, that enhance profitability of process & product. Properties
like dimensions, tensile strength, elastic recovery, electrical
resistance, rigidity etc. of all textile fiber whether natural or
synthetic are influenced by moisture regain, which controlled by
conditioning of air in mill.

There are not many occasions where humidity is more of an issue than
during the processing of textile. Get it wrong and it can stop
productions, damage machinery and harm staff. Get it right and you can
maximize product weights, improve quality and increase machine speeds.
The automatic air conditioning system used today is user friendly as
well as efficient. Due to this proper and unique control on process
without any interruption of humans. there fore newly developing mill
gives prominence to automatic air conditioning plant. Last few years
many conditioning companies developing new technologies and system for
textile industries.

INTRODUCTION:Spinning
of yarn from cotton and then weaving or knitting cloth from the yarn is
known to mankind millennium. It is probably one of the first crafts
developed as men’s thought of civilization, the ancient learnt that if
water is sprayed on the floor in hot days or if we get wet cloth is kept
over yarn , working is easier because of less yarn breakages. This was
state of affairs till 200 years back, but as industrial revolution
takes place mass production was aimed, different methods were developed
to provide moisture to material to the material in process. As the
machine heat added it create problem to RH%. In olden days people are
using water cans and more number of windows which may not suitable for
high speed.

Image: Air conditioned spinning mill

Another
factor is human comfort, if atmospheric condition in mill is
comfortable to worker then it is easy to get maximum efficiency from
worker.

NEED OF RH% CONTROL IN SPINNING:Correct
ambient conditions are essential to prevent degradation of textile
material during a series of operation right from beating in blow room to
weaving. Yarn should have requisite properties so that the final
product retains its basic shape, size & strength.

(When Humidity is High):-
Fiber tends to stick and lead to formation of laps on rolls which
disrupt production process. Removal of laps is not only a manual and
time consuming process, but result in damage of machine part ,
especially the rubber material (apron, top roller etc.).

(When Humidity Is Low ):-
Fiber become brittle and store electric charges generated because of
friction between the fiber during their spinning process, which affect
fiber properties and machine too.

In
modern spinning machine designed with high speed which increase in
temperature of mill and affect process. Whereas , modern machine has
electronic control panel which requires specific temperature. Textile
machinery generally are made of steel and aluminum which shows expansion
during process with different rate which generate thermal and
mechanical stress in machines.

Hence
along with maintenance of stable RH% condition, recommended for textile
and also to maintain the temperature level within range.

Humidification reduces fly and micro dust, giving a healthier and more comfortable working environment

Image: General recommendations of RH% for spinning

Image: General recommendations of temperatures for spinning

Conclusion:- There
are many different issued involved with humidification of textile plant
and as above described in discussions, getting it wrong can be an
expensive mistake. So to control process, production, quality, comfort
conditioning of air is necessary, even though humidification plant
consumes 15% of energy of total spinning plant.
That 15% cost can be overcome by improving quality and production of
yarn. In proper conditioning, it is to work and control the production.
As above mentioned condition of RH% and temperatures for that specific
process gives good efficiency and less machine maintenance.

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Editor-in-Chief:

Mazharul Islam Kiron is a textile consultant and researcher on online business promotion. He is working with one European textile machinery company as a country agent. He is also a contributor of Wikipedia.